Inspiratory Muscle Training Device for Respiratory Endurance Prediction
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Solution Overview
Problem
There is no quantitative method to predict respiratory muscle fatigue or endurance without engaging in exercise, making it difficult to assess athletic performance and potential health issues effectively.
Innovation Solution
The Inspiratory Muscle Training Device (IMTD) measures respiratory parameters during a single inspiratory breath, using sensors and mobile device technology to calculate the Fatigue Index Test (FIT) score, which accounts for environmental and elevation differences, providing a quick and convenient assessment of respiratory muscle strength and endurance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional exercise activity is used to measure respiratory muscle endurance, then performance can be assessed, but the method is time-consuming and requires engaging in actual exercise to stretch performance limits
Solution Approach 1:
The device performs preliminary measurement of respiratory muscle endurance through a single maximal inspiratory breath before actual exercise activity. By measuring Pmax (maximal inspiratory pressure) and calculating the Fatigue Index Test score in advance, the system provides a predictor of respiratory muscle endurance without requiring the user to engage in time-consuming exercise tests that stretch performance limits
Solution Approach 2:
The invention replaces the mechanical exercise-based testing system with a sensor-based measurement system. Instead of using actual exercise activity to assess respiratory muscle endurance, the device uses pressure sensors and flow sensors to measure respiratory parameters during a single breath, substituting physical exercise with instrumental measurement
2Measurement precision
If environmental and elevation differences are not compensated for, then the device remains simple, but measurement accuracy decreases due to variations in air density
Solution Approach 1:
The system introduces an intermediary computational layer that uses environmental data (temperature, pressure, humidity) and elevation information to calculate air density corrections. This intermediary processing step adjusts the raw respiratory measurements to account for environmental variations, maintaining measurement precision without requiring complex hardware modifications
Solution Approach 2:
The device dynamically adjusts measurement parameters based on environmental conditions. By changing temperature, pressure, and elevation parameters in the calculation algorithm, the system compensates for air density variations and maintains accurate respiratory muscle endurance assessment across different environmental conditions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The IMTD offers a portable, easy-to-use solution that quickly predicts respiratory muscle fatigue and endurance, correlating with aerobic capacity and athletic performance, while also potentially indicating health issues, and provides real-time training feedback to improve respiratory muscle strength.
Implementation Method 1
The IMTD measures various pressure and flow parameters when a user breathes in through the device during a single inspiratory breath
Implementation Method 2
There is typically a restrictive orifice mounted at the other end of the ITMD which can provide variable amount of restriction. This restriction can be varied by altering the size of the orifice
Data Source
AI summary
A method and device for determining respiratory airflow metrics during a single inspiratory breath and using those metrics to calculate indicators of aerobic capacity and athletic endurance as well as a method and device for strengthening the respiratory muscles.